Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1b26535d58d4796d079860f56cdb5068ac8db987589a9438ce46c3365fb3264b' 
  AND token = 'ApVQNCXgILpkT/gKuCVhEiQl+Tk+garVCkNC0u4xps8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}